Siemens MC45 User Manual

MC45 Hardware Interface Description
P R E L I M I N A R Y
MC45_HD_01_V00.02a Page 57 of 90 12.08.2002
3.8 Control signals
The following control signals are available (2.65V level).
3.8.1 Inputs
Table 15: Input control signals of the MC45 module
Signal Pin Pin status Function Remarks
Falling edge Power up MC45
Ignition
/IGT
Left open or HiZ No operation
Active low ³ 100ms (Open
drain/collector driver to GND
required in cellular device
application).
Note: If a charger and a
battery is connected to the
customer application the /IGT
signal must be 1s minimum.
Low Power down MC45
Emergency
shutdown
/EMERG-
OFF
Left open or HiZ No operation
Active low ³ 3.2s (Open
drain/collector driver required
in cellular device application).
At the /EMERGOFF signal the
watchdog signal of the GSM
engine can be traced (see
description in Table 19).
(HiZ = high impedance)

Siemens MC45 Specifications

General

Brand	Siemens
Model	MC45
Category	Engine
Language	English